72064070 has 32 divisors (see below), whose sum is σ = 140101920. Its totient is φ = 26530560.

The previous prime is 72064063. The next prime is 72064079. The reversal of 72064070 is 7046027.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72064079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63266 + ... + 64394.

It is an arithmetic number, because the mean of its divisors is an integer number (4378185).

Almost surely, 2^72064070 is an apocalyptic number.

72064070 is a deficient number, since it is larger than the sum of its proper divisors (68037850).

72064070 is a wasteful number, since it uses less digits than its factorization.

72064070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 72064070 is about 8489.0558956812. The cubic root of 72064070 is about 416.1401270726.

The spelling of 72064070 in words is "seventy-two million, sixty-four thousand, seventy".